Abstract

Abstract. Limited research has focussed on historical droughts during the pre-instrumental weather-recording period in semi-arid to arid human-inhabited environments. Here we describe the unique nature of droughts over semi-arid central Namibia (southern Africa) between 1850 and 1920. More particularly, our intention is to establish temporal shifts in influence and impact that historical droughts had on society and the environment during this period. This is achieved through scrutinizing documentary records sourced from a variety of archives and libraries. The primary source of information comes from missionary diaries, letters, and reports. These missionaries were based at a variety of stations across the central Namibian region and thus collectively provide insight into subregional (or site-specific) differences in hydrometeorological conditions and drought impacts and responses. The earliest instrumental rainfall records (1891–1913) from several missionary stations or settlements are used to quantify hydrometeorological conditions and compare them with documentary sources. The work demonstrates strong subregional contrasts in drought conditions during some given drought events and the dire implications of failed rain seasons, the consequences of which lasted for many months to several years. The paper argues that human experience and associated reporting of drought events depends strongly on social, environmental, spatial, and societal developmental situations and perspectives. To this end, the reported experiences, impacts, and responses to drought over this 70-year period portray both common and changeable attributes through time.

Highlights

  • Defining drought as a “concept” or as an “event” has received much discussion and debate, which seems to be ongoing (e.g. Agnew and Chappell, 1999; Mishra and Singh, 2010; LloydHughes, 2014; Parry et al, 2016)

  • While Grab and Zumthurm (2018) considered climatological causes for 19thcentury wet–dry periods over central Namibia, the current paper focuses on the broader context of historical droughts during the period 1850–1920

  • We investigate how drought events are portrayed through textual sources written by early European colonists in what is today central Namibia

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Summary

Introduction

Defining drought as a “concept” or as an “event” has received much discussion and debate, which seems to be ongoing (e.g. Agnew and Chappell, 1999; Mishra and Singh, 2010; LloydHughes, 2014; Parry et al, 2016). Brázdil et al (2019) explore various types and characteristics of drought that are relevant to both contemporary and historical contexts. These authors use the definition by Wilhite and Pulwarty (2018), i.e. that drought is “a prolonged period of negative deviation in water balance compared to the climatological norm in a given area” The nature of recent and contemporary droughts in their various contexts is becoming increasingly complex

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